Locknut - Wikipedia
Hex Jam Nuts High-Quality Hex Jame Nuts
Know Your Nuts: Common Hex Nuts
The Use of Two Nuts to Prevent Self Loosening of Fasteners
3/8-16 Hex Nuts Jam Coarse Low Carbon Plain
Hex Nuts
Jam nuts are tightened against the work surface and a finished or heavy hex nut is tightened agianst the jam to keep it from loosening
1/4-20 A563 Grade A Heavy Hex Jam Nut, Plain (Inch) (Quantity: 100) (Thread Diameter - Pitch: 1/4-20)
What Are Jam Nuts and How Do They Work?
Jam nut, tool
Prime-Line #10-24 Solid Brass Machine Screw Hex Nuts (100-Pack
Jam Nuts - Boltport Fasteners
Different types of Nuts
Hex Jam Nuts Inch Standards
What are Jam Nut Connectors?